Wave-absorbing electromagnetic shielding regenerated polyester fiber and preparation method thereof

Abstract

The invention discloses wave-absorbing electromagnetic shielding regenerated polyester fiber. The fiber comprises a double-opening resonator area formed by conductive polyester and an enhanced wave-absorbing area formed by magnetic polyester; the double-opening resonator area comprises outer ring conductive polyester, an outer ring opening, inner ring conductive polyester and an inner ring opening; the outer ring opening and the inner ring opening need to be designed in opposite directions and at corresponding positions; and the enhanced wave-absorbing area comprises core magnetic polyester, inner-layer magnetic polyester and outer-layer magnetic polyester, and the three parts of polyester are mutually connected and communicated and fill all areas, except the conductive polyester, of the fiber. According to the wave-absorbing electromagnetic shielding regenerated polyester fiber, a vibration wave absorber structure is applied to regenerated polyester fiber by using the regenerated polyester fiber, conductive particles and magnetic particles, so that the regenerated polyester fiber is endowed with effective wave-absorbing and shielding functions. The invention also discloses a preparation method of the wave-absorbing electromagnetic shielding regenerated polyester fiber.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and relates to a wave-absorbing electromagnetic shielding regenerated polyester fiber, and also relates to a preparation method of the wave-absorbing electromagnetic shielding regenerated polyester fiber. Background technique [0002] Electromagnetic shielding fabric is an important electromagnetic compatibility material, which is widely used in the fields of military defense, aerospace, electric power and civilian medical treatment. However, for a long time, there has been a serious technical defect in electromagnetic shielding fabrics, that is, they are mostly produced with reflective materials such as stainless steel fibers and silver-plated fibers, which not only tend to cause multiple reflections in the shielding cavity and cause greater damage to the protected object, but also cause Cause secondary pollution to the surrounding environment due to reflection. On the other hand, dom...

AI Technical Summary

Problems solved by technology

However, for a long time, there has been a serious technical defect in electromagnetic shielding fabrics, that is, they are mostly produced with reflective materials such as stainless steel fibers and silver-plated fibers, which not only tend to cause multiple reflections in the shielding cavity and cause greater damage to the protected object, but also cause Cause secondary pollution to the surrounding environment due to reflection

On the other hand, domestic and industrial polyester waste represented by plastic bottles, plastic bags, and waste textiles has been increasing year after year, and it is difficult to degrade and transform through natural conditions, causing great harm to the global environment. However, its functional recycling technology At present, there are still many deficiencies, especially the technology that makes the recycled polyester fiber have electromagnetic shielding and wave-absorbing functions at the same time has not yet appeared.

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